Flexible, micro-array and three-portion precision t pulse testing system

Abstract

The invention belongs to the field of biomedical testing instruments, and mainly relates to a precision pulse testing system which comprises a forearm positioning device, three channels of signal acquiring devices, a power supplying module, a pressure monitoring and controlling module, a signal acquiring and converting module, a signal processing and displaying module and the like. The precision pulse testing system has the advantages that three-portion and nine-pulse taking procedures carried out by traditional Chinese physicians can be precisely simulated by the aid of a manipulator on the basis of a bionic principle; sensors are graphene capacitive micro-array flexible thin-film sensors, are effectively adaptive to individual tissue structure difference and accordingly can be effectively in contact with tissues of the skins of the wrist of a patient, 400 channels micro-array signals can be acquired by each sensor in real time, and transversal and longitudinal spatial resolution (of 0.4 millimeter) of the signals can be greatly improved; postures of the forearm elbow, the wrist and the palm of the patient can be adjusted and keep in optimal acquisition states by the aid of the precision pulse testing system, pulses can be simultaneously acquired from the forearm elbow, the wrist and the palm of the patient, and the forearm elbow, the wrist and the palm of the patient can be repeatedly and precisely positioned; by the aid of the precision pulse testing system, 28 pulses of the patient can be precisely judged and taken, a microscopic pulse condition of the patient can be analyzed, and four-dimensional image maps of pulse waves of the patient, time-domain pseudo-color topographical maps and the like can be outputted.

Description

technical field [0001] The invention belongs to the field of biomedical detection instruments, and mainly relates to a flexible, microarray, and three-position accurate pulse detection system. technical background [0002] Pulse diagnosis is one of the most important and distinctive diagnostic methods in traditional Chinese medicine. It has been highly praised by physicians of all dynasties for thousands of years. However, since the spread of western learning to the east, due to its unique theoretical expression and relatively backward way of inheritance, there are fewer and fewer TCM physicians who have mastered the technique of pulse diagnosis and applied it skillfully in clinical practice. In order to inherit and develop this technology and make it play its due role in preventive and clinical medicine, since the 1950s, Chinese scientific and technological workers have devoted themselves to the study of the objectification of pulse diagnosis, exploring the essential charac...

AI Technical Summary

Problems solved by technology

[0005] First, the spatial resolution of pulse information collection is too low, the amount of information is seriously insufficient, and the detection accuracy of pulse length, pulse width, fluency, tension and other indicators is not enough

At present, most pulse monitors are single-contact type, which can only collect one signal at a certain part of inch, close, and ruler, and the spatial resolution of the information is greater than 4mm. This type of equipment cannot detect information such as pulse width and pulse length; although There are also some array pulse detection probes that can collect multiple signals at the same time, but either due to their low integration, or due to the inherent mechanical or electromagnetic characteristics of their core materials, the pressure sensitivity of a single probe in the horizontal and vertical directions The number of units is still limited, and the spatial resolution of its pulse information is greater than or equal to 1.5mm (such as pulse detection equipment with patent application numbers 201010508173.6, 200610119382.5, and 200820075107.2), and clinical experiments show that if the spatial resolution of the pulse detection probe is greater than 0.8mm, then The detection accuracy of pulse length and pulse width is too low, so it can identify some pulse types with important diagnostic value (such as thin pulse, Confucian pulse, micro pulse, weak pulse, leather pulse, weak pulse, tight pulse, etc.) When interpreting, the accuracy rate is often too low and it is easy to cause misdiagnosis

[0006] The second is that the repeatability is poor. Multiple tests are performed on the same patient at intervals (within two hours), and the measurement results have large deviations and low consistency.

The main reason is that the detection equipment lacks a precise positioning device. During repeated measurements, the geometric position of the sensor on the radial skin deviates to a certain extent. Distortion fluctuations appear

[0007] The third is that the stability and durability are low, and it cannot be well applied to the real clinical environment.

Most of the existing array-type pulse detection probes are composed of separate pressure-sensitive units with independent structures through mechanical connection. Because the structure is too complex and delicate, the connection is fragile, resulting in low stability, impact resistance and durability. ;Single-contact probes mainly adopt silicon cantilever beam structure, and their mechanical properties are also poor. Some probes fall from the table to the floor, and the internal structure will be damaged and cannot work normally.

[0008] Fourth, the pressure range of the pulse detection probe is insufficient (usually between 0 and 0.8 kgf), which is sometimes difficult to meet actual needs

[0009] The fifth is that the pulse detection equipment can not make good contact with the epidermal tissue of the detection part due to the differences in individual local tissues during the measurement, and the collected signal is seriously distorted

[0010] Sixth, automatic stepless pressurization cannot be realized

[0011] Seventh, most pulse detection equipment is designed with a single probe, which cannot independently control the acquisition of the three signals of inch, off, and ruler at the same time.

[0012] Eighth, most pulse detection equipment cannot measure the left and right hands at the same time, the detection time is long and the efficiency is not high

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